private static String decodeQrcode(String filePath) {
String content = "";
try {
BufferedImage image = ImageIO.read(new File(filePath));
MultiFormatReader reader = new MultiFormatReader();
LuminanceSource source = new BufferedImageLuminanceSource(image);
BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
Result result = reader.decode(bitmap, getDecodeHints());
content = result.getText();
} catch (Exception e) {
e.printStackTrace();
}
return content;
}
/**
* Decode the data within the viewfinder rectangle, and time how long it took. For efficiency,
* reuse the same reader objects from one decode to the next.
*
* @param data The YUV preview frame.
* @param width The width of the preview frame.
* @param height The height of the preview frame.
*/
private void decode(byte[] data, int width, int height) {
// long start = System.currentTimeMillis();
// Result rawResult = null;
// PlanarYUVLuminanceSource source = CameraManager.get().buildLuminanceSource(data, width,
// height);
// BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
// try {
// rawResult = multiFormatReader.decodeWithState(bitmap);
// } catch (ReaderException re) {
// // continue
// } finally {
// multiFormatReader.reset();
// }
//
// if (rawResult != null) {
// long end = System.currentTimeMillis();
// Log.d(TAG, "Found barcode (" + (end - start) + " ms):\n" + rawResult.toString());
// Message message = Message.obtain(activity.getHandler(), R.id.decode_succeeded,
// rawResult);
// Bundle bundle = new Bundle();
// bundle.putParcelable(DecodeThread.BARCODE_BITMAP,
// source.renderCroppedGreyscaleBitmap());
// message.setData(bundle);
// //Log.d(TAG, "Sending decode succeeded message...");
// message.sendToTarget();
// } else {
// Message message = Message.obtain(activity.getHandler(), R.id.decode_failed);
// message.sendToTarget();
// }
long start = System.currentTimeMillis();
Result rawResult = null;
// modify here
byte[] rotatedData = new byte[data.length];
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++)
rotatedData[x * height + height - y - 1] = data[x + y * width];
}
int tmp = width; // Here we are swapping, that's the difference to #11
width = height;
height = tmp;
PlanarYUVLuminanceSource source =
CameraManager.get().buildLuminanceSource(rotatedData, width, height);
BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
try {
rawResult = multiFormatReader.decodeWithState(bitmap);
} catch (ReaderException re) {
// continue
} finally {
multiFormatReader.reset();
}
if (rawResult != null) {
long end = System.currentTimeMillis();
Log.d(TAG, "Found barcode (" + (end - start) + " ms):\n" + rawResult.toString());
Message message = Message.obtain(activity.getHandler(), R.id.decode_succeeded, rawResult);
Bundle bundle = new Bundle();
bundle.putParcelable(DecodeThread.BARCODE_BITMAP, source.renderCroppedGreyscaleBitmap());
message.setData(bundle);
// Log.d(TAG, "Sending decode succeeded message...");
message.sendToTarget();
} else {
Message message = Message.obtain(activity.getHandler(), R.id.decode_failed);
message.sendToTarget();
}
}
DecodeHandler(CaptureActivity activity, Hashtable<DecodeHintType, Object> hints) {
multiFormatReader = new MultiFormatReader();
multiFormatReader.setHints(hints);
this.activity = activity;
}
